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MSP430F5529: MSP430F5529 Not Turning on after testing

Char Lee
Prodigy 30 points
Part Number: MSP430F5529


Hi, I was testing the example code called MSP430TC0701 Demo - Software Port Interrupt Service on P1.4 from LPM4 by trying to provide a 5V to the P1.4 pin. It was all working normally, until LED101 and LED102 just turned off. I got worried and tried plugging it into the computer via USB and it doesn't turn on.

What could the problem be?

If it's broken, is it possible to get it replaced? I only had it for a couple of weeks, and I was really looking forward to using it for my project.

Thank you

  • 0
    Guru 318740 points
    You must not use any voltage higher than VCC, which is probably 3.3 V with your hardware. It looks as if you have fried your chip.

    What board are you using? Where did you get it from?
  • 0
    Expert 1560 points
    Hello Char,

    Do you have test equipment? A multi meter or oscilloscope?
    Measure the current into the device. If the current is high ( greater then 0.3 amps) you probably fried it.
    Check the clock to see if it is oscillating. If the is no crystal oscillation then the chip is fried.

    If both of these are working. then there is another issue. I will need more information to help.

    Good luck,
    Chris
  • 0 in reply to Clemens Ladisch
    Prodigy 30 points

    I'm using the MSP430F5529LP, purchased from TI. I've been using 6V because my intended design was going to use an SLA 6V battery.

    Should I have just added a voltage regulator or something for the MSP? If it is fried, does TI have a warranty on their microcontroller boards?

  • 0 in reply to Chris from Pinterec
    Prodigy 30 points
    Hi Chris,

    I have a multimeter. How would I test the device's current and the clock's oscillation?

    Thanks,
    Char
  • 0 in reply to Char Lee
    Expert 1560 points
    Hello Char,

    You should take a look at the datasheet for the msp430F5529. This shows the hardware specification. On page 19 you will see the absolute maximum Ratings. In the table it shows the maximum power you can apply to any pin is 4.1V. This is higher than the operating range, which is 3.6V. To use the MSP430F5529 you need to power it with a maximum of 3.6V. Yes. You wil need a voltage regulator. Something like a LOD or a stepdown.

    The multimeter can measure current by connecting one lead to the power supply and the other lead to the development board. You need to put it in series between the power supply and the development board. The power supply and develoment board need to share the same ground. Dont forget to use the current ports on the multimeter and set the dial to read mA.

    To measure the crystal, you need to set the multimeter to frequency mode. Hook up the leads to the ground and Freq port. Measure across the crystal. The display will show the frequency of the crystal. The two crystals on the board are 4MHZ ad 32.456kHz. If you don't see anything it is not oscillating.

    Just so you are clear....If you put more that 4.1 on the power pin, the board is fried. You will need to replace the chip (if you can) or buy a new development board.

    Hope this helps,

    Chris From PinteEC
    www.pintere.ca

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